hello, I just need to connect humidity & temperature sensor to ioio for logging purpose. I could not decide which sensor I should select because of my poor knowledge of electronics. Your shares are a very valuable source for me, thank you bourdonnais.
I searched & read in forum that Ytai says "in general, if you use I2C, SPI or analog interface sensors you should be good. 1-wire is not currently supported." Today, actually I searched and noted which sensors I guess can use: (in the order of cost) DHT22 - https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf (already has a box and mentioned to support up to 20m cable) Which type output does this have from above Ytai definition? Sensirion - http://www.sensirion.com/en/products/humidity-temperature/ Honeywell HumidIcon - http://sensing.honeywell.com/honeywell-sensing-humidicon-nomenclature-009078-2-en.pdf Texas Instruments HDC100x - My aim is to have nonstop continuous logging of a sensor that connected to ioio via cable which will be used in close area with roughly range of temp: -20 to 80 C & humidity: 5 to 95%. I would be appreciated if you comment any suggestion to select a sensor for my purpose. Thanks in advance, 23 Şubat 2015 Pazartesi 15:38:29 UTC+2 tarihinde bourdonnais yazdı: > > Hello, > > I wanted to share an update. > > My ioio system has been somewhat *in production* for 3 weeks. > > I did apply a correction to the values read by tmp102 sensor yesterday. > I currently run with -3.5° celsius correction to get a credible value. > > I expect the cause to be somehow hardware related (a slow creep, a > variable error) > > Maybe the very variable humidity (between 30% and 70%, temp between 5°c > and 20°c) is the cause of the readings I get. > > I have now two more ioio boards to discover the origin of that gremlin. As > the ioiothingy is a temperature controlling magic wand, temp reading > accuracy is somehow... vital. > > I will wire tmp102 & MCP9008, and maybe a couple of other sensors > (combined humidity & temperature) as a "lab". > And I'll hook a dht22 on an arduino too. > > > > On Sun, Jan 25, 2015 at 11:46 PM, Ytai Ben-Tsvi <[email protected] > <javascript:>> wrote: > >> Doesn't seem like you're checking the return value of writeRead(). Any >> chance it is returning false? If so, common problems are bad connections >> (loose), wrong pins, forgetting pull-ups, forgetting common ground, not >> configuring the TMP102 address correctly, using the wrong address from code. >> For debugging I would encourage you to Log.d(...) your readings to get >> GUI-related problems out of the possible things that can go wrong. >> >> On Thu, Jan 22, 2015 at 3:35 PM, Javier Soriano <[email protected] >> <javascript:>> wrote: >> >>> Hi Ytai, >>> >>> I'm working now in this project. I have read all the examples that other >>> users and you post here and I tried to implement it. However, I don't know >>> why the app doesn't show the temperature. I append the MainActivity.java in >>> this message. >>> >>> Thanks in advance!! >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "ioio-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected] <javascript:>. >>> To post to this group, send email to [email protected] >>> <javascript:>. >>> Visit this group at http://groups.google.com/group/ioio-users. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "ioio-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at http://groups.google.com/group/ioio-users. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
